view tests/lengthGe.ur @ 1886:b7cd3c7c7edd

Interpret 'table' signature items more flexibly, automatically adding (Ur) constraints to support a kind of subtyping over (SQL) constraint sets
author Adam Chlipala <adam@chlipala.net>
date Mon, 04 Nov 2013 15:14:23 -0500
parents f96e708b4b93
children
line wrap: on
line source
fun main () : transaction page =
    s <- source "";
    return <xml><body>
      <ctextbox source={s}/>
      <dyn signal={v <- signal s;
                   return (txt (strlenGe v 3))}/>
    </body></xml>